using EinSoftworks.Events;
using EinSoftworks.Input;
using EinSoftworks.Movement;
using Godot;

namespace Voider.Player;

public partial class Player : FirstPersonController
{
    [Export]
    public Label SpeedVal { get; set; }

    [Export]
    public Label StateVal { get; set; }

    [Export]
    public Label PositionVal { get; set; }

    [Export]
    public Label VelocityVal { get; set; }

    private float _lastSpeed = 0f;

    public override void _Ready()
    {
        // InputManager is initialized by the library
        InputManager = InputManager.Instance;

        // Assign CameraNode from scene before calling base._Ready()
        if (CameraNode == null)
        {
            CameraNode = GetNode<Node3D>("CameraMount");
        }

        // Set FOV and camera settings before base._Ready()
        BaseFov = 75f;
        MouseSensitivity = 0.35f;
        ControllerSensitivity = 3.0f;
        MinPitch = -89f;
        MaxPitch = 89f;
        EnableDebugOutput = true;

        base._Ready();

        // Try to find UI labels if they're not already assigned
        // This allows the scene to work standalone or with external UI
        if (SpeedVal == null || StateVal == null || PositionVal == null || VelocityVal == null)
        {
            // Try to find DebugHUD in the scene tree
            var ui = GetNodeOrNull<Control>("/root/LibraryTest/UI/DebugHUD");
            if (ui == null)
            {
                ui = GetNodeOrNull<Control>("/root/Main/UI/DebugHUD");
            }

            if (ui != null)
            {
                SpeedVal = ui.GetNodeOrNull<Label>("StatsPanel/VBoxContainerValues/SpeedVal");
                StateVal = ui.GetNodeOrNull<Label>("StatsPanel/VBoxContainerValues/StateVal");
                PositionVal = ui.GetNodeOrNull<Label>("StatsPanel/VBoxContainerValues/PositionVal");
                VelocityVal = ui.GetNodeOrNull<Label>("StatsPanel/VBoxContainerValues/VelocityVal");
            }
        }

        Config = new MovementConfig
        {
            // Base speeds (HL2-style)
            MaxSpeed = 5f,
            MaxSprintSpeed = 8f,
            MaxWalkSpeed = 3f,
            MaxCrouchSpeed = 2f,
            Acceleration = 8f,
            AirAcceleration = 1.5f,
            AirSpeedCap = 8f,
            AirControl = 0.3f,
            Friction = 6f,
            StopSpeed = 1f,
            JumpVelocity = 5f,
            Gravity = 15f,

            // Bunny hopping with momentum preservation
            EnableBunnyHopping = true,
            EnableAutoHop = false,
            BunnyHopSpeedMultiplier = 1.05f,

            // Crouching
            EnableCrouching = true,
            CrouchHeight = 0.5f,

            // Titanfall 2-style sliding
            EnableSliding = true,
            SlideSpeed = 10f,
            SlideAcceleration = 15f,
            SlideFriction = 3f,
            SlideMinSpeed = 5f,
            SlideJumpBoost = 1.2f,
            SlideDuration = 1.2f,

            EnableSurfing = true,
        };

        MouseSensitivity = 0.35f;
        EnableDebugOutput = false;

        GD.Print($"InputManager assigned: {InputManager != null}");
        GD.Print($"CameraNode assigned: {CameraNode != null}");
        GD.Print($"Config assigned: {Config != null}");

        SubscribeToStateChanges(OnMovementStateChanged);

        MovementEvents.PlayerJumped += OnPlayerJumped;
        MovementEvents.SpeedChanged += OnSpeedChanged;

        GD.Print("TestPlayer initialized with all libraries!");
        GD.Print("- Movement: Enabled");
        GD.Print("- Input: Enabled");
        GD.Print("- Events: Enabled");
        GD.Print("- StateManagement: Enabled");
        GD.Print("- Camera: Enabled");
    }

    public override void _Process(double delta)
    {
        base._Process(delta);

        UpdateUI();
    }

    private void UpdateUI()
    {
        if (SpeedVal != null)
        {
            SpeedVal.Text = $"{CurrentSpeed:F1} u/s ";
        }

        if (StateVal != null)
        {
            string state = "Unknown";
            // Check crouch first since IsOnFloor() is unreliable when crouched
            if (IsCrouching)
            {
                state = "Crouching";
            }
            else if (IsOnFloor())
            {
                if (WishDirection.LengthSquared() > 0.01f)
                    state = "Walking";
                else
                    state = "Idle";
            }
            else
            {
                state = "Airborne";
            }

            StateVal.Text = $"{state} ";
        }

        if (PositionVal != null)
        {
            PositionVal.Text =
                $"({GlobalPosition.X:F1}, {GlobalPosition.Y:F1}, {GlobalPosition.Z:F1}) ";
        }

        if (VelocityVal != null)
        {
            VelocityVal.Text = $"({Velocity.X:F1}, {Velocity.Y:F1}, {Velocity.Z:F1}) ";
        }
    }

    private void OnMovementStateChanged(MovementStateChangedEvent evt)
    {
        GD.Print($"[Movement] State changed to: {evt.StateName} (Speed: {evt.Speed:F1})");

        MovementEvents.RaiseStateChanged(evt.StateName);
    }

    private void OnPlayerJumped()
    {
        GD.Print($"[Event] Player jumped at speed: {CurrentSpeed:F1}");
    }

    private void OnSpeedChanged(float speed)
    {
        if (Mathf.Abs(speed - _lastSpeed) > 50f)
        {
            GD.Print($"[Event] Speed changed significantly: {_lastSpeed:F1} -> {speed:F1}");
            _lastSpeed = speed;
        }
    }

    public override void _Input(InputEvent @event)
    {
        base._Input(@event);

        if (@event.IsActionPressed("ui_cancel"))
        {
            if (Godot.Input.MouseMode == Godot.Input.MouseModeEnum.Captured)
            {
                Godot.Input.MouseMode = Godot.Input.MouseModeEnum.Visible;
            }
            else
            {
                Godot.Input.MouseMode = Godot.Input.MouseModeEnum.Captured;
            }
        }
    }

    public override void _ExitTree()
    {
        MovementEvents.PlayerJumped -= OnPlayerJumped;
        MovementEvents.SpeedChanged -= OnSpeedChanged;

        base._ExitTree();
    }
}